Home / 438,862,863.74-658,308,172.14-162,583,221.56

Finding the Fourth Proportional to 438,862,863.74, 658,308,172.14 and 162,583,221.56

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Solution

The fourth proportional to 438,862,863.74, 658,308,172.14 and 162,583,221.56 is: 243,879,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,862,863.74 : 658,308,172.14 = 162,583,221.56 : x
  2. Step 2: Convert to fraction form
    438,862,863.74/658,308,172.14 = 162,583,221.56/x
  3. Step 3: Cross multiply
    438,862,863.74x = 658,308,172.14 × 162,583,221.56
  4. Step 4: Simplify right side
    438,862,863.74x = 107,029,863,402,504,704
  5. Step 5: Solve for x
    x = 107,029,863,402,504,704/438,862,863.74
  6. Step 6: Final answer
    x = 243,879,973.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.